Here's what rhymes with obstac.
back pack stack jack tack tak black attack lack track nach plaque rack sac sack slack hack aback fac knack lac shack smack snack flak mac mak whack wrack yak flack mack wack yack highjack crack quack shellac unpack zodiac clack ipecac claque repack thumbtack mudpack skyjack paperback elegiac hardtack lumberjack piggyback anorak applejack razorback pickaback cardiac almanac maniac quarterback haversack crackerjack gunnysack rickrack counterattack demoniac stickleback amnesiac steeplejack insomniac nymphomaniac megalomaniac Words that almost rhyme with obstac
bag tag stag dag flag drag lag rag slag gag hag wag brag fag mag nag sag snag zag shag swag fleabag blag toerag crag dishrag scrag nosebag saddlebag washrag sleazebag chinwag wigwag lollygag lallygag scalawag scallywag bank task tank bask dank talc spank stank basque rank blank thank drank flank mask sank flask frank plank shrank cask franc masque shank hanc lank prank hank yank swank crank antitank clank outrank embank riverbank unmask databank charabanc pointblank